JPH11254959A - Window frame structure of construction machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make the appearance beautiful and eliminate the danger of an operator being injured by providing a resin-made trim for covering a frame. SOLUTION: Locking holes 31 are provided on the inside edge having an exposed edge of a frame 15 at proper intervals along the longitudinal direction. A resin-made trim 32 is formed so that one end of the section thereof makes contact with the belly part of a window insert rubber 13, and the other end has a length and form covering the angle of the frame. The resin-made trim 32 has locking holes formed at the same intervals as the locking holes 31, and the resin-made trim 32 is put on the inside edge of the frame 15 so that these locking holes are conadent with the locking holes 31 to cover it. Clips 35 are inserted to the locking holes 31 in this state to fix the resin-made trim 32. According to this, since the projection part and edge of the frame 15 are covered with the resin-made trim 32, a beautiful appearance can be provided. Further, since the edge of the frame 15 is shielded by the resin-made trim 32, the danger of an operator being injured in a work such as wiping of a window glass can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention belongs to the technical field of a window frame structure of a construction machine.

[0002]

2. Description of the Related Art A construction machine such as a hydraulic shovel is provided with a cab for an operator on an upper swing body.
The cab is provided with windows as much as possible, since the operator must always monitor not only the operation of the work machine but also the surrounding conditions during the work. For example, the front of the cab is mostly a window, and the rear is also provided with a window as wide as possible. A side window is provided on one of the side surfaces. However, the window provided on the front is an openable window, and the structure of the window frame is structurally different from a fixed window such as a side window which cannot be opened.

A window frame structure of a front window which can be opened and closed is disclosed in, for example, Japanese Utility Model Publication No. 7-33714 and Japanese Utility Model Publication No. 62-56682. Hereinafter, the structure of the front window 11 will be described. Figure 3 shows the front window 1
1 is an overall perspective view of FIG. FIG. 4A shows an arrow a- of the front window.
FIG. 4B is a cross-sectional view as viewed from a, and FIG. As shown in FIG. 4B, the upper and lower window frame structures are fixed by inserting one end of a window glass 12 into a groove of a window rubber 13. One end of a frame 15 having an opening 14 in cross section is inserted and fixed in the groove on the opposite side of the window rubber 13. The frame 15 is held by a holder 16 made of an elastic material such as rubber, and is sealed so that rainwater or the like does not enter.

Further, as shown in FIG. 4A, the side window frame structure is substantially the same as the upper and lower window frame structures. However, the frame 15 is provided with rollers 17 for sliding up and down. The frame 15 has a U-shaped cross section.
In some cases, a frame 18 having an L-shaped cross section is used as disclosed in US Pat. FIG.
(C) and (D) show window frames using an L-shaped frame. FIG. 5 shows another conventional example. FIG. 5 (A),
FIG. 5B is a modified example in which a window rubber is used, and FIG. 5A is a frame 19 having a substantially rectangular shape and an opening provided at one corner. One end of the opening is inserted into the groove of the rubber window 13, and the other end is in contact with the abdomen of the rubber window 13.

FIG. 5 (B) shows a U-shaped trim 20 made of a resin, which is inserted into the opening 14 of the U-shaped frame in a reverse manner, and is sandwiched between the side of the frame 15 and the abdomen of the window rubber 13. It is. FIG. 5C shows a case in which the window glass 12 is directly adhered to the frame 19 without using the window rubber in FIG. 5A. FIG. 5D corresponds to the case of FIG. 5B and shows a case where the window glass 12 is directly bonded to the frame 15.

[0006]

As described above, in the window frame structure of the prior art, the frame is exposed in the cab, so that the appearance is impaired and a rough feeling is given to the production. was there. In addition, since the edge of the frame is exposed, there is a possibility that the operator may be injured when wiping the window to remove the fogging of the window. Further, there is also a problem that mud and water accumulate in the concave portion of the lower frame, causing rust. The present invention
An object of the present invention is to provide a window frame which is made under the above-described background, has a beautiful appearance, and eliminates a risk of injury to an operator or the like.

[0007]

The present invention employs the following means to solve the above-mentioned problems. That is, claim 1
The window frame structure according to (1), a window frame of a construction machine in which one end of a frame is inserted into one groove of a window rubber having an elongated groove on both sides, and a window glass is inserted into an opposite groove of the window rubber. In the structure, a resin trim for covering the frame is provided. That is, the invention of claim 1 is mainly characterized in that a resin trim cover is provided in a window frame structure using a window rubber.

According to a second aspect of the present invention, there is provided a window frame structure for a construction machine in which a window glass is adhered to one end side of the frame, wherein a resin trim for covering the frame is provided. That is, the invention of claim 2 is characterized mainly in that a resin-made trim cover is provided in a window frame structure in which a window glass is adhered and fixed to a frame.

According to a third aspect of the present invention, in the window frame structure according to the first or second aspect, a locking hole is provided in the frame and the resin trim, and a clip is inserted into the locking hole. It is characterized in that a resin trim can be locked to the frame. That is, the invention of claim 3 is characterized in that a locking hole is formed in the frame and the resin trim and the clip and the trim are engaged.

According to a fourth aspect of the present invention, in the window frame structure according to the first or second aspect, a locking hole is provided in the frame, and a clip engaging with the locking hole is provided in the resin trim. It is characterized by that. That is, the invention of claim 4 is characterized in that a locking hole is formed in the frame and a clip engaging with the locking hole is provided on the resin trim.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to FIGS. Note that the same components as those described in the related art are denoted by the same reference numerals, and detailed description thereof will be omitted. FIG. 2A shows an overall perspective view of the embodiment of the present invention. This figure is a view of the front window 11 as viewed from inside the cab. FIGS. 1A and 1B show a case where the window glass 12 is fixed using a window rubber 13 and are cross-sectional views as seen from arrows cc and dd. FIG.
(C) and (D) show the case where the window glass 12 is fixed to the frame 16 using an adhesive. FIG. 2B is an enlarged detailed sectional view of the locking portion, and FIG. 2C is a modified example of FIG. 2B.

As shown in FIGS. 1 (A), 1 (B) and 2 (B), locking holes 31 are opened at appropriate intervals along the longitudinal direction on the inner side 30 having the exposed edge of the frame 15. . The resin trim 32 has a length and shape such that one end of the cross section is in contact with the abdomen of the glazing and the other end covers the corner of the frame. Lock holes 33 are formed in the resin trim 32 at the same intervals as the lock holes 31. The resin trim 32 is covered on the inner side 30 of the frame 15 so that the locking holes 31 and the locking holes 33 coincide with each other to cover the frame. In this state, clip 35
Into the locking holes 31 and 33 to fix the resin trim 32.

In order to mount the handle 40 shown in FIG. 2A, a stupid hole is previously formed at a position corresponding to the mounting hole of the resin trim 32, and the handle 40 is directly mounted on the frame 15. FIG. 2C is an example of a modification of FIG. 2B in which the clip 36 is provided on the resin trim 32 on the back side. In this case, the handling is easier than in the previous case, but there is a drawback that the manufacture becomes difficult.

FIGS. 1C and 1D are different from the above-described frame structures (A) and (B) only in that the window glass 12 is fixed to the frame 15 with an adhesive, and the other points are the same. Therefore, the description is omitted. The trim 32 is made of a synthetic resin or a general resin, and the clip is made of a material such as rubber or resin.

In the above embodiment, the projection and the edge of the frame 15 are covered with the resin trim 32, so that the appearance is beautiful. Further, since the edge of the frame is hidden behind the resin trim, the window glass is provided. In the case of wiping to remove fogging, there is an effect that the risk of injury to the operator is avoided. Further, since the opening portion 14 of the frame is covered with the trim 32, dust, water droplets, and the like hardly enter. Therefore, there is also an effect that rust and corrosion are prevented.
In addition, since the resin trim is attached and detachable by the clip, it can be replaced with a new one when it is damaged or becomes dirty, so that repair and assembly can be easily performed.

Although the embodiments and examples of the present invention have been described in detail with reference to the drawings, the specific configuration is not limited to the examples, and the design can be changed within a range not departing from the gist of the present invention. The present invention is included in the present invention. For example, the present invention includes a case where a resin trim is attached to the frame with another material instead of the clip, for example, with an adhesive or the like.

[0017]

As described above, according to the construction of the present invention, the edges of the frame and the like are covered with the resin trims 32, so that the appearance is beautiful, and in the case of wiping for removing the fogging of the window glass. This also has the effect that the risk of injury to the operator is avoided. Further, in the third or fourth aspect, there is an effect that attachment and detachment are easy and repair and replacement are easy.

[Brief description of the drawings]

FIG. 1 shows an embodiment of the present invention. (A) and (B) show the case where a window rubber is used, and (C) and (D) show the case where the window glass is directly fixed to the frame by bonding.

FIG. 2A is an overall perspective view of the embodiment, and FIG.
(C) shows an enlarged detail view.

FIG. 3 shows a perspective view of a front window frame of the prior art.

FIG. 4 shows a cross-sectional view of a conventional window frame structure.

FIG. 5 shows a cross-sectional view of a conventional window frame structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Window glass 13 Window rubber 14 Opening 15 Frame 31, 33 Locking hole 32 Resin trim 35, 36 Clip

Claims (4)

[Claims] 1. A window frame structure for a construction machine in which one end of a frame is inserted into one groove of a window rubber having an elongated groove on both sides, and a window glass is inserted into an opposite groove of the window rubber. A window frame structure for a construction machine, wherein a resin trim for covering the frame is provided. 2. A window frame structure for a construction machine in which a window glass is adhered to one side of the frame, wherein a resin trim for covering the frame is provided. 3. The frame and the resin trim are provided with locking holes, and a clip is inserted into the locking hole so that the resin trim can be locked to the frame. Or the window frame structure of a construction machine according to any one of the above items 2. 4. The construction machine according to claim 1, wherein a locking hole is provided in the frame, and a clip engaging with the locking hole is provided on the resin trim. Window frame structure.